共 11 条
- [1] DITMAN LP, 1943, MD AG EXPT STA B, V24
- [2] DUDLEY J. E., 1936, JOUR ECON ENT, V29, P501
- [6] GOODHUE LD, 1942, ET190 US BUR ENT PLA
- [7] JOHNSON WG, 1899, USDA DIV ENT B, V20, P94
- [8] SAVAGE JC, 1932, Patent No. 1842844
- [9] SAVAGE JC, 1932, US PATENT OFFICE OFF, V414, P959